Lamp



Apr. 10, 1923. 1,451,123

' J. c. STEESE ET AL LAMP I Filed Jul 25, 1921 Patented Apr. 10, 1923.

oFFICE. Y

JAY C. STEESE AND CHESTER A. HOFF, OF AKRON, OHIO, ASSIGNORS TO THEAKRON LAMP COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

LAMP.

Application filed July 23,

To all whom it may concern:

Be it known that we, JAY C. Srnnsn and CHESTER A. Horn, citizens of. theUnited States, and residents, respectively, of Akron,

in the county of Summit and State of Ohio, and Akron, in the county ofSummit and State of Ohio, have invented a certain new and usefulImprovement in Lamps, of which the following is a full, clear, and exactdescription.

This invention relates to a lamp structure such as is commonly used instandards of hydro-carbon vapor lamps.

One of the objects of the invention is to provide a structure in whichthe mixing head and the burners are detachable as a I unit from the baseportion of the lamp.

Another object is to provide a construction such that the generator tubeis fastened to the upright pipe coming from the base or font of the lampwhich generator tube will remain in place, after the head and burner ofthe lamp have been detached and re moved. In this condition thegenerator may 2 be very readily needled or it may be removed as occasionmay require.

Reference should be had to the accompanying drawings forming a part ofthis specification, in which Fig. 1 is an elevation of a lamp embodyingthe present invention; Fig. 2 is a front elevation of a portion of thelamp wherein the invention resides; Fig. 3 is a side elevation of theshowing in Fig. 2; Fig. 4 is a top plan view with portions in sectionshowing co-operating parts of the structure; Fig. 5 is an elevation of aportion of the structure.

Referring to the drawings, 1 indicates the base of the lamp, which isprovided with hand engaging portion 2; extending from the base and upthrough the hand engaging portion 2 is a pipe 3 which is threaded at itsend and is adapted to receive a fixture which is indicated at 4. Thisfixture is 4 threaded at its lower end, as indicated at 5, forengagement with the pipe 3. The fixture 4 is hollow, and has a threadedneck 6 through which extends a valve stem 7 and there is provided apacking nut 8 which engages with the outer threaded portion of the neck6.

Extending upwardly from the portion 4 is a threaded extension 9. Thisthreaded extension has fiat sides such as indicated at 10 and 10.-Mounted upon the threaded ex- 1921. Serial No. 486,991.

tension 9 is a thumb nut 11 having a knurled periphery, the nut 11 beingmovable up or down upon the extension 9. I The interior of the extension9 is hollow and at its end it is threaded to receive the lower threadedend of a generator tube 12. This generator tube is made of thin walledtubing which is very well known in the art, and the generator isprovided with a coiled portion 12 intermediate its ends which is adaptedto be heated by a match or similar heat device, at the starting of thelamp, so as to insure an initial vaporization of the lpydrocarbon, forthe purpose of starting the amp. (lo-operating with the portion 9 of thefixture 4 is a bracket 13. This bracket has one portion upon which ismounted a tubular member 14. The opposite portion is provided with acutout which is indicated at 13 this cut out being of sufficient widthto be engaged with the flattened sides 10, 10

of the extension 9, so that when the bracket 13 is assembled withrespect to the extension 9, the bracket can not have any appreciableside movement.

Additionally the depth of the slot 13 -is such that when the parts areassembled the opening 13 is in proper alignment to receive the generatortube.

When the bracket 13 is assembled on the extension 9 the knurled nut 11is turned down until it engages With the top of the bracket 13, whichwill securely hold the bracket 13 from being drawn outwardly or againstany movement:

In order to provide a more eflicient clamping action a portion of the.top part of the bracket 13'is recessed, as indicated at 13", 1

while on the under side of the nut ll'there is a complementaryextension, as indicated at 11 When the clamping nut 11 is turned downthe extension 11 seats in the recess 13*.

positioned on opposite sides of the generator 6 tube, and when the lampis in action the heat from the mantles causes vaporizing of thehydro-carbon which is passing through the generator tube 12.

The member 15 is provided with an opening 15 which is so positioned thatthe end of the generator tube 12 may extend through the opening andcommunicate with the interior of the member 15. The tubular member 14and the member 14 serve as air ducts whereby air may pass through thesemembers and mix with the hydrocarbon in gaseous form :as it isdischarged at the end of the generator tube.

Attention is called to the fact that the -bracket13, the tubular member14, the member 15 the mixing head 16, and the parts carried thereby, areall secured to each other so as to form substantially a unitarystructure. Onsthe other hand, the generator tube is carried by thefixture 4 which is in turn secured to the base portion of the lamp.

When the lamp is assembled and in operative condition if it be desiredto remove the generator or if it be desired to needle the same at theend of the generator tube, the same may be accomplished by loosening thethumb nut 11 and the operator grasps the tube 14, giving the same atilting movement so as to withdraw the bracket 13 from its engagementwith the tension, and thereafter elevating the tube 14 and the partscarried thereby. After this has been accomplished, the generator tubemay be needled, or removed and a new one inserted in place thereof.

Heretofore it has been the general practice to have the generator tuberemovable, but usually the generator tube has been held in place at thelower end thereof by some sort of a jamb nut construction. Removing thegenerator from the remaining structure of the lamp has been a matter ofconsiderable difiiculty because the generator tube is so small that thefingers of the manipulator can with difficulty retain it against theside movement, and consequent engagement with the mantles ofthe lampwhich invariably results in breaking of the mantles.

On the other hand, by removing the air tube and the structure associatedtherewith as in the present instance, the air tube at fords an objectfor the hand of the manipu lato'r tograsp, and it is much easier to manipulate and move the heated structure of the lamp and disassociate itfrom its engagement with the generator tube than merely removing thegenerator tube.

Additionally, the construction has considerable advantage in the matterof shipment of a lamp. It is very desirable that the fixture 4 beassembled. on the pipe 2 carried in the base of the lamp at the factoryso as to insure a tight non-leaking connection, whereas in some priorconstructions the air tube and the mixing head and burners weresupported by a bracket which formed an integral part of such fixture,the packaging ofthe lamp was more or less difficult because of theheight of the lamp.

In the present instance the desirable feature of having all theimportant connections of the lamp made at the factory so that they aregas tight, is accomplished. At the same time the super structurecomprising the air tube, the head and the burners is made removable, asis also the generator tube, so that the height of the package requiredfor packing the lamp is materially reduced.

Having described our invention, claim 1. In a device of the characterdescribed, the combination with a lamp base having an upstanding pipe, afixture threaded upon said upstanding pipe, a generator tube having oneend thereof attachedto said fixture, a mixing head, burners carried bysaid mixing head, an offset member secured to the head and having anopening through which an end 01 the said generator tube extends,

a post secured to the offset member, and

bracket to which the post is secured, said bracket being detachablysecured to the said fixture whereby the bracket and the parts carriedthereby may be removed as a unit from the said fixture and generatortube.

2. In a device of the character described, the combination with a basehaving an upstanding pipe, a fixture threaded upon said pipe, agenerator tube having one end secured in said fixture, a mixing head,burners carried by said mixing head, an oiiset member co-operating withthe head, an opening through said offset member into which an end of thegenerator tube extends, an upright member secured to the offset member,a bracket to which the upright member is secured, said bracket having asliding contact with the said fixture, and means for holding the bracketto the fixture.

3. In a device of the character described, the combination with a basehaving an upstanding pipe, a fixture threaded upon said pipe, agenerator tube having one end secured in said fixture, a mixing head,burners carried by said mixing head, an ofi'set member co-operating withthe head, an opening through said ofiset member into which an end of thegenerator tube extends, an upright member secured to the offset member,a bracket to which the upright member is secured, said bracket beingprovided with a recess, said fixture having an extension. which isadapted to slidlngly engage said recess, and co-operating means upon thewalls of the recess and the projection for preventing relative rotation,and means for holding the bracket to the fixture.

4. In a device of the character described, the combination with a basehaving an upstanding pipe, a fixture threaded upon said pipe, agenerator tube having one end secured in said fixture, a mixing head,burners carried by said mixing head, an offset member co-operating withthe head, an opening through said offset member into which an end of thegenerator tube extends, an upright member secured to the offset member,a bracket to which the upright member is secured, said bracket having arecess with oppositely disposed flat sides the said fixture havingoppositely disposed fiat sides and adapted to co-operate with the flatsides of the bracket, and means for holding the bracket and fixturetogether.

5. In a device of the character described, the combination with a basehaving an upstanding pipe, a fixture threaded upon said pipe, agenerator tube having one end secured in said fixture, a mixing head,burners carried by said mixing head, an offset member co-operating withthe head, an opening through said offset member into which an end of thegenerator tube extends, an upright member secured to the offset member,a bracket to which the upright member is secured, said bracket having arecess which straddles and engages with the sides of the berco-operating with the head, an opening through said offset member intowhich an end of the generator tube extends, an up right member securedto the offset member, a bracket to which the upright member is secured,said bracket having a recess and the bracket being provided with agroove in the top thereof, said bracket straddling the fixture andengaging with the sides thereof, a nut carried by the fixture, said nuthaving a flange on the under side thereof which engages a groove in thetop of the bracket whereby the bracket and fixture are held to eachother.

In testimony whereof, we hereunto aflix our signatures.

JAY C. STEESE.

CHESTER A. HOFF.

